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University of Nebraska - Lincoln
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Self-Oscillating Cmos Class D Amplifier Optimized For Low Output Power, Daniel J. White
Self-Oscillating Cmos Class D Amplifier Optimized For Low Output Power, Daniel J. White
Open Access Master's Theses (through 2010)
The continual push for smaller size and decreased power consumption has prompted the adoption of class D amplification for speaker and headphone drivers in portable media devices.With proper design, the power efficiency of this amplifier type can exceed any other topology over the whole output range, even at low output levels.
Simple amplifier topologies are not the norm for these integrated circuit (IC) class D amplifiers.This thesis shows that such complexity is not necessary for good performance.A recently presented simple self-oscillating topology is mapped into a standard CMOS technology and fabricated in a 0.5 micron process. The output stage is …